Loom pattern mechanism.



PATBNTBD JULY 7, 1908.

H. BARDSLEY. LOOM PATTERN MECHANISM.

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APPLICATION FILED 00T.2Z,1904.

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LOOM PATTERN MECHANISM.

APPLICATION FILED OOT.22,1904.

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AN-o. 892,926. PATENTED JULY '7, 1908.

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LOOM PATTERN MECHANISM.

APPLICATION FILED 0OT.2Z,1904.

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PATENTED JULY 7, 1908.

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HENRY BARDSLEY, OF PROVIDENCE,

LOOM WORKS, A CORPORATION RHODE ISLAND, ASSIGNOR TO CROMPTON & KNOWLES OF MASSACHUSETTS.

LOOM PATTERN MECHANISM.

Specification of Letters Patent.

PatentedJuly '7, 1908.

Application filed October 22, 1904. Serial No. 229,529.

.Tov all whom it may concern:

Be it known that I, HENRY BARDsLEY, a citizen of the United States, residing at in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Loom Pattern Mechanism, of which the following is a specification.

My invention relates to loom pattern mechanism of the class which has a pattern surface, preferably a pattern chain, for operating, through intermediate connections, the dropboxes, and a supplemental pattern surface, ordinarily called an auxiliary or multiplier pattern chain, for repeating certain bars of the box pattern chain, in the ordinary and well known way, said box pattern chain and multiplier pattern chain having a ratchet and pawl operating mechanism in the ordinary way.

The object of my invention is to improve upon the construction of the pattern mechanism of the class referred to, as ordinarily made, and more particularly to provide reversing mechanism, for turning back the box pattern chain and the multiplier pattern chain, in case of picking out, or otherwise, in such a manner that they will not get out of time, and in case they should get out of time thel will automatically adjust themselves. d also to provide mechanism connected with the box pattern chain and the multiplier pattern chain, and also connected with any ordinary filling stop motion of a loom, which mechanism .acts to move the pawls, which operate the box pattern chain and the multiplier pattern chain, into an inoperative position, in case of the breaking or failure of filling. And also to provide an improved pattern chain race or holder. All of said improvements may be combined with and ap lied to a box pattern chain, and a multiplier pattern chain, of any ordinary construction and operation.

My invention consists in certain novel features of construction of my improve-- ments as will be hereinafter fully described.

I have only shown in the drawings sufficient portions of a shuttle box pattern chain, and multiplier pattern chain and operating mechanism, with my improvements combined therewith, to enable those skilled in the art to which my invention belongs to understand the construction and operation thereof.

Referring to the drawings -Figure 1 is a plan view of a box pattern chain and multiplier pattern chain mechanism, and my improvements combined therewith, looking in the direction of arrow a, Fig. 2. Fig. 2 is a rear end view of the parts shown in Fig. 1, looking in the direction of arrow b, same figure. Fig. 3 is a section, taken at a point indicated by line 3, 3, Fig. 1, looking in the direction of arrow c, same figure. Fig. 4 is a detached end view of the multiplier pattern chain cylinder and multiplier pattern chain, and a portion of the indicator lever, which is left out of Fig. 3, in order to avoid confusion. Fig. 5 is a section, taken at a point indicated by line 5, 5, Fig. 1, looking in the direction of arrow c, same figure, showing some parts which are left out in Fig. 3, and, Fig. 6 is a section, taken at a point indicated by line 6, 6, Fig. 1, looking in the direction of arrow d, same figure, with some parts left off.

The broken lines in Figs. 5 and 6 show the opposite positions of some of the parts.

In the accompanying drawings, 1 is the end portion of a loom arch, to which is secured a stand 2, which forms a support for the several parts of the pattern mechanism. A shaft 4 suitably journaled has fast on one end a hub 5 of alever 5, which has an elongated slot 5l at its outer end to receive a stud 6, adjustable in said slot. On the stud 6 is pivotally mounted the hub 7 on the upright rod 7, the lower end of which is connected with mechanism, not shown, which operates said rod 7 and, through lever 5, rocks the shaft 4, in the ordinary way.

The pattern chain shaft 8 is journaled in suitable bearings, and has the rotary box pattern chain cylinder 9 secured thereon, carrying the flexible pattern chain 10 of ordinary construction, consisting of rolls 10 and tubes 10". Extending over the box pattern chain 10 are in this instance two box indicator levers 11, and 12. On the pattern chain shaft 8 is fast at one end a hand wheel S', and at the other end is loose a hand wheel 8, connected to the multiplier pattern chain cylinder 13. The multiplier pattern chain cylinder 13, see Fi 4, which carries the multiplier pattern c ain 14, in this instance made up of what are termed risers and sinlers is loose j arms 22 and 23 thereon connected to the e to engage respectively with the wheels 9a and on the pattern chain shaft 8. 15is the multiplier pattern chain indicator lever, which extends over and is engaged by the multiplier pattern chain 14. The multiplier pattern chain indicator lever 15 has a hub 15 which is loose on a shaft 16, journaled in suitable bearings. Extending out from the hub 15" is an arm 15, having a projection 15 thereon, and adjustable relative to its positiori on the shaft 16 by means of a bolt 18, extending through a slot 17 in the arm 17, see Fig. 3. The arm 17 is made at its free end in the form of a shield. Also loose on the shaft 16 is the pattern indicator lever 19, which extends over the box pattern chain 10, and has a side extension 19 thereon connected bya bolt 2() with an adjustable arm 21, having a hub mounted on the shaft 16, and a projection 21 thereon. The other end of the adjustable arm 21 is made in the form of a shield. Extending under the box pattern chain cylinder and the multiplier pattern chain cylinder are two stop levers 22, and 23, mounted on the shaft 4, and having springs 24 and 24, which springs are also ,connected to a transverse rod 25. Said springs 24 and 24 act to hold the curved ends of the stop levers 22, and 23, in engagements with the ratchet wheels 9a and 13a, connected respectively with the pattern chain cylinder 9, and the multiplier pattern chain cylinder 13, to hold said ratchet wheels, and the box pattern chain, and the multiplier pattern chain, in their proper positions.

26 is an arm or lever fast on the rock shaft 4, and having at its upper end a pin 26 on which are pivotally mounted a push pawl 27, and a pull pawl 28, which are adapted 13a, and also adapted to be engaged by the shield portions on the arms 17 and 21, and be held out of operation by the same. The pawls 27 and 28 are provided at their outer ends with projections 27 and 28, see Fig. 1. I will now describe my improvements in the reversing mechanism' for turning baclf; the box pattern chain 10, and the multiplier pattern chain 14.

. A lever 29, having a handle 29, is pivoted at its lower end on the pattern chain shaft 8. The lever 29 has a pin 30 thereon, with its ends extending out from opposite sides of the lever 29. On the projecting ends of the pin 30 are pivoted two pawls 31 and 32, one of which, as 31, acts as a pull pawl, and the other, as 32, acts as a push pawl. Each of the pawls 31 and 32 has a weighted end 31 and 32, which act to hold the pawls, and also the lever 29 in their lowered position, shown by full lines in Figs. 5 and 6. One of the pawls, as 31, is adapted to engage the ratchet wheel 9a, to turn the same backward, and the other of the pawls l as 32 is adapted to engage the ratchetl 'wheel 13a, to turn the same in the opposite direction. The raising of the lever 29, to the position shown by broken lines in Figs. 5 and 6, causes the hubs on the pawls to engage the projecting ends 27 and 28, on the pawls 27 and 28, and raise them out of 'engagement with their respective ratchet wheels 9a and 13a. At the same time the movement of the lever 29, through the pull pawl 31 attached to said lever, reverses the box pattern chain barrel one pick, and the movement of the lever 29 in the opposite direction, by means of the push pawl 32 attached to said lever and engaging thev wheel 13a, reverses the multiplier pattern chain one pick. The wheels 9a, and 13a are so constructed that they may be operated, either by a push or a pull pawl, and the pawls on the lever 29 are arranged just opposite to the pawls which move the pattern chains forward. j

l will now describe my improvements, combined with the box pattern chain and the multiplier pattern chain mechanisms, which act to move the pawl which o erates the box pattern chain, or the pawl whic 1 operates the multiplier pattern chain, (whichever one happens to be in action,) into an inoperative position, when the loom is stopped by reason of the breaking or failure of filling, so that when the loom is again started the proper indications on the pattern chains will be under the indicator levers.

Loosely mounted on the shaft 16 is an arm 33, having a side extension 33 thereon, which is adapted to engage the projections 17 and 21, on the arms 17 and 21, respectively. Connected with the arm 33 is a connector 34, which is connected with the ordinary filling stop motion, not shown, which causes the connector 34 to move down the arm 33, when the loom is stopped by reason of the breaking or failure of the filling. The downward movement of the arm 33 will cause the side extension 33 thereon to engage the projections 17 and 21, on the arms 17 and 21, to rock said arms, and cause the shield ends thereof to be raised, and to engage and raise the pawls which operate the box pattern chain, and the multiplier pattern chain, so that said pawls will not operate the pattern chains.

I will now describe my improvements roo which relate to the construction of the pattern chain race or holder.

Two separate side frames 3.5, have hubs 35 on their rear edge, through which passes the rod 25, and upon which they are secured by bolts 36, see Fig. 3. The front ends of the two side frames 35 are secured together and held in proper alinement by a tie rod 37. The front part of the chain race or holder, over which the chain passes,

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consists of two bars 38, suitably grooved, which are connected at their lower ends by plates 39 with the side frames 35, and at Their upper ends by plates 40, as shown in It will be understood that the multiplier pattern chain mechanism shown in the drawings and above described, is similar to the ordinary and well known form of ratchet multiplier pattern chain mechanism which causes the repetition of certain bars of the box pattern chain, but I have added to the ordinary multiplier pattern chain mechanism, a reversing mechanism, which I term a pull-back mechanism, by which both the multiplier pattern chain and the box pattern chain are turned back, pick by pick, without fear of changing their relation to each other.

With my improved mechanism the operator only needs to observe the number of picks which are removed, in case of icking out, and then move the pull-back lever back and Jforth the required number of picks. This operation will move back the chains. When my pull-back lever is not 'in use, the same is out of position and does not interfere with the ordinary operation of the pattern chains.

It will be understood that the details of construction of my improvements may be varied if desired.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a loom pattern mechanism, of the class described, the combination with a box pattern chain, and a multi lier pattern chain, and ppwl and ratchet mec anism for operating t e same, of a reversing mechanism for turning back the box pattern chain, and the multiplier pattern chain, said reversing mec anism comprising a pivoted .lever carrying two pawls, adapted to engage and turn the ratchet wheels of the pawl and ratchet'mechanism of the box pattern chain and of the multiplier attern chain, on the backward and iorwar movement of said lever.

2. In a loom pattern mechanism oi' the class described, the combination with a box attern chain, a multiplier pattern chain, and pawl and ratchet mechanism for operating the same, of a reversing mechanism for turnin back the box attern chain and the multip ier pattern c ain, said reversing mechanism comprising a pivoted lever carrying two pawls, one movement of said lever acting to reverse the box pattern chain, and the other movement of said lever acting to reverse the multiplier pattern chain.

3. In a loom attern mechanism of the class described, the combination with a box pattern chain, and a multiplier pattern chain, and ppwl and ratchet mechanism for operating t e same, of a reversing mechanism for turning back, pick by pick, the box pattern chain and the multiplier pattern cham, said reversing mechanism comprising a ivoted lever carrying two pawls, a push paw and a pull pawl, one pawl on one movement of said ever adapted to engage the ratchet wheel of the ratchet mechanism for operating the box pattern chain, to reverse it, and the other pawl on the other movement of. said lever ada ted to engage the ratchet wheel of the ratc et mechanism for operating the multiplier attern chain, to reverse it.

4. In a loom pattern mechanism, the combination with the attern chain, of a pattern chain race or holger, comprising two separate side frames secured together at their front part and held in proper alinement by a transverse rod, and said rod and secured at their rear part on a transverse rod, and said rod and two inclined bars having grooves therein for the pattern chain, and connected at their lower ends to the front part of the side frames, and at their upper ends to the upper rear part of the side frames.

5. In a loom pattern mechanism, the combination with the attern chain, of a pattern chain race or holder,- comprising two separate side frames secured together at their front part, and held in proper alinement, and secured at their rear art, and two inclined bars having grooves t erein for the pattern chain, and connected at their lower ends to the front part of said side frames, and at their upper ends to the upper rear part of the side frames.

HENRY BARDSLEY. Witnesses:

HENRY S. FAVOR, E. F. GREENE. 

